only plurilocular organs known for the eastern Pacific. In Australia, plants bore unilocular and plurilocular organs. Plurilocular organs released zooids which produced plants identical to the parent and bearing plurilocular and unilocular organs. Unilocular organs from the parent plant released zooids which produced plants identical to the parents, and some plants developed only plurilocular organs, while others developed both plurilocular and unilocular organs (Clayton 1974). In Korea plants bearing unilocular organs are common (H. Kim and Lee 1992b).